428 reputation
210
bio website
location
age
visits member for 2 years, 6 months
seen Aug 18 at 18:03

Aug
4
awarded  Popular Question
Jul
8
asked How do universal battery chargers work
Jul
2
awarded  Curious
May
15
comment Any liquid metallic alloys which are safe to handle with bare hands?
I suppose, while not a true alloy, ferrofluid (ask.metafilter.com/145880/Ferro-fluid-experiment-safe) is relatively harmless and has several metallic properties...
May
14
asked Any liquid metallic alloys which are safe to handle with bare hands?
Mar
20
awarded  Popular Question
Mar
1
awarded  Yearling
Dec
29
awarded  Nice Question
Dec
20
accepted How to smooth the spectrum of a light source?
Dec
19
comment How to smooth the spectrum of a light source?
Direction, partially (more to keep the intensity high enough to be usable than, say, to do imaging). Doesn't a tunable laser have just a few lines, one/some of which can be selected?
Dec
18
asked How to smooth the spectrum of a light source?
Sep
17
comment Why planes have propellers in front but watercraft have them behind?
Thanks, AlanSE. That's insightful information. About stability, does that make vehicles with back-mounted propellers oversteer, and front ones understeer, as back and front-wheel-drive cars do?
Sep
17
accepted Why planes have propellers in front but watercraft have them behind?
Sep
1
asked Why planes have propellers in front but watercraft have them behind?
Apr
30
accepted Gravitational potential outside Lagrangian points or Lagrange points
Apr
30
comment Gravitational potential outside Lagrangian points or Lagrange points
Thanks a lot, AlanSE. That explains it very well. +1 for explaining the equation too!
Apr
30
comment Gravitational potential outside Lagrangian points or Lagrange points
It was from csep10.phys.utk.edu/astr162/lect/binaries/accreting.html seemingly from a University of Tennessee lecture. The accompanying text states specifically, "The gravitational potential energy for a binary system is plotted in the adjacent diagram."
Apr
18
comment Why there is no “Edison” unit in physics?
And he had 2 units named after him: sizes.com/units/siemens.htm
Apr
8
comment Gravitational potential outside Lagrangian points or Lagrange points
Thanks for the explanation. I'm not much concerned about the stability at L4 or L5, but rather the implications on movement far away. The surface slopes downwards (in fact at an increasing rate) far from the ring. Does that mean that a free body there will move away from the masses?
Apr
8
asked Gravitational potential outside Lagrangian points or Lagrange points